Firefox Community Forum

Hello,

I am having an odd issue where I see flickering bands of cyan/purple blocks whenever I scroll on a page with some video embeds. At first I thought it was related to refresh rates (240hz) as some pages flickers but it occurs at 60hz as well.

2560 X 1600 Resolution with 125% windows scaling

Steps to reproduce: 1) have settings above 2) navigate to https://store.steampowered.com/ 3) view a storefront with a video embed 4) zoom to 180% 5) scroll up and down past the video

Specs: 64GB Ram AMD RYZEN AI 365 Geforce RTX 5080

To view my Firefox browsing history, I click the three horizontal lines icon (in the top right corner of the window) to open the Menu panel. I then click History then click Manage History.

How can I make the font larger?

(Ctrl++ does not increase the zoom-level) (Zoom does not increase the zoom-level)

I have a desktop PC Firefox 140.0.4 (64-bit) Windows 11

Several web sites say that they detect this ad block on my pc , but I can not find it through my pc sites. It seems to be kind of a worm that can not be disabled. I am using Firefox.

For no apparent reason, all Firefox 140.0.4 on Windows 10 crashed and when it was relaunched it did not restore any open tabs, reverting instead to the home page. All history is gone, no previously open tabs are windows appear in the history list. This computer has syncing enabled.

I used about: profiles on the Win 10 machine and it only shows the one that is currently in use. I copied the 2 files found in the along with places.sqlite into a temp directory. I did a search for index.dat and it is not found on the Win 10 computer.

Even worse: another computer running Win 11 that is syncing with the Win 10 machine is also now missing its history. Is there a way to recover from this?

Note: I am generating this from the Win 11 machine, not the problematic Win 10 machine.

I'm having major problems with Firefox and was able to use it for a long time and I love the software to death. But it has given this problem that I have run into before which the only way I was able to fix it was a full wipe of my computer to factory settings. So with this I started to troubleshoot on what I could do and reinstall was the first and send commands to refresh the dns but I found to what seems to be a startup incomplete file in the Firefox software and it seems to create itself even when deleted. It could be this which is causing problems but all I know for certain that when I click on Firefox it won't open at all or startup. With the only evidence that it responded from task manager or a popup talking about wanting to refresh Firefox for 0.1 milliseconds

Something happens to the images when I upload them to any service in the Mozilla browser. Instead of the image I see a strip. There are no such problems with any other browser. Attached is an illustration.

PC Windows 11 Home Video card MSI GeForce 210 [N210-1GD3/LP] Motherboard MSI PRO H510M-B Intel Core i3-10105F BOX

There going down like flies chief I have no idea how long they'll last or what the root cause is but I have report numbers listed below: bp-6a2f6577-50b4-4503-aa6f-edc0c0250714 7/14/2025, 5:44 AM bp-cca0da19-acc6-4699-b2fd-f78070250714 7/14/2025, 5:44 AM bp-3afd947d-1ab0-4e44-9fee-f4cbb0250714 7/14/2025, 1:05 AM bp-9399b8e9-a389-41bb-9231-a95d50250714 7/14/2025, 3:54 PM bp-8e2c1005-1c7b-49ea-8a50-dbb780250714 7/14/2025, 3:55 PM bp-d270fbee-4e08-4c3b-a6ce-870400250714 7/14/2025, 3:55 PM bp-1cd7a43d-c702-4a15-bb9f-396ef0250714 7/14/2025, 3:56 PM bp-e6cd9efa-9998-4408-872a-713c60250714 7/14/2025, 3:56 PM bp-23709997-e2af-4463-b1ce-b7a4f0250714 7/14/2025, 3:56 PM bp-d46d3db6-876e-4794-a500-f1a590250714 7/14/2025, 3:56 PM bp-723ea32e-8da6-46c0-bbc2-ea5190250714 7/14/2025, 3:56 PM bp-a8860709-a511-44de-9f6a-318560250714 7/14/2025, 3:56 PM bp-fa8c5f4b-5b15-46d1-8df6-ae76f0250714 7/14/2025, 3:56 PM bp-bc81e502-f570-4e59-86b3-e2d720250714 7/14/2025, 3:56 PM bp-ddfeae99-8833-4297-9d0c-010d20250714 7/14/2025, 3:56 PM

working with miro site using firefox is terrible -

- too long downloading and redirecting - half of times strange errors occurs - https://disk.yandex.ru/i/PFQTbYdKGSKS0Q - no problem with chrome or edge - https://disk.yandex.ru/i/XBY6SIzk_gGBYw - just search all troubles - https://www.google.com/search?q=miro+is+not+working+firefox

You seriously need to remove the AUTOMATIC tab grouping, it's annoying as hell!

I know there's a workaround, but that's beside the point. You don't break into someones home in order to re-organize it, that's just bad practice all around.

I had my startup page EXACTLY as I wished with two rows of most often used links to websites. While trying to find a solution to "page jumping" I use Help; "troubleshooting mode" and selected "Restart Firefox in Troubleshooting Mode". It did not solve the page jumping issue but did remove MY customized startup page and I do not how to get it back. I also used "Exit" and restarted Firefox but Firefox set my page to the default start page.

How do I get back to MY old startup page?

This is but one frustrating experience setting up MY computer to perform as I wish ... the computer culture has become "user unfriendly" .... what was once simple is now "too highly geek-ed".

Thanks in advance for your effort in solving yet another Firefox rabbit-hole problem.

Hello everyone I just updated my operating system to refresh Win 11 and downloaded a fresh copy of Firefox signed in The problem I am having is when I switch to a theme it does not stay or show in the tabs Has anyone found a solution?

For some reason my Firefox has started to become much slower when I view / watch anything in full screen, it doesn't matter from where. A Twitch stream in full screen? The Video Player becomes slow, even using the escape key to leave fullscreen takes a bit. Youtube video in fullscreen? Same thing happens. No matter what site is being used, if I go full screen on any video player, everything becomes suuuper laggy. I've tested other browsers and they don't seem to have that issue so it's not a hardware or connection issue.

Hi all, I'm having an odd problem. For some time now, whenever I look at a list of programs on my computer, Firefox shows up twice. In the last week or so, a new problem has cropped up. When I click on a link in Thunderbird, Firefox opens, but it's like I'm in a totally new instance of Firefox. My browsing history doesn't exist, it will not remember that I have already told Firefox to always open Zoom when I click on a Zoom link, and if I'm streaming a radio station, that tab will be in a separate window rather than in a new tab as it was before. What's going on here?